计算复杂性的研究不仅仅是关于问题的分类;它是关于理解计算本身的本质。
The truth is rarely pure and never simple.
真理是一面从上帝手中掉下来摔成碎片的镜子。每个人都拿了一块,看着它,以为他们拥有了真理。
Success is not final, failure is not fatal: It is the courage to continue that counts.